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| author | Dale Johannesen <dalej@apple.com> | 2010-12-21 20:10:51 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2010-12-21 20:10:51 +0000 |
| commit | a83bf35d167c43ff2eb8c61bdea0cb660d2b07d8 (patch) | |
| tree | 6882c6c11c5c734f0cd404a8f82a0e03a82abd7e /test/CodeGen/X86/x86-64-extend-shift.ll | |
| parent | 5ecc340e34e6ca4b9f6ebde6c1379cb3b8084f69 (diff) | |
| download | llvm-a83bf35d167c43ff2eb8c61bdea0cb660d2b07d8.tar.gz llvm-a83bf35d167c43ff2eb8c61bdea0cb660d2b07d8.tar.bz2 llvm-a83bf35d167c43ff2eb8c61bdea0cb660d2b07d8.tar.xz | |
Add a new transform to DAGCombiner.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122355 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/x86-64-extend-shift.ll')
| -rw-r--r-- | test/CodeGen/X86/x86-64-extend-shift.ll | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/test/CodeGen/X86/x86-64-extend-shift.ll b/test/CodeGen/X86/x86-64-extend-shift.ll new file mode 100644 index 0000000000..6852785fd6 --- /dev/null +++ b/test/CodeGen/X86/x86-64-extend-shift.ll @@ -0,0 +1,10 @@ +; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s +; Formerly there were two shifts. + +define i64 @baz(i32 %A) nounwind { +; CHECK: shlq $49, %rax + %tmp1 = shl i32 %A, 17 + %tmp2 = zext i32 %tmp1 to i64 + %tmp3 = shl i64 %tmp2, 32 + ret i64 %tmp3 +} |